Extra socket in hallway - Electrical job in Forest Hill, South London

Job description

It should be a simple job.
just take a spur from an electrical point and run a white cable about 10 feet up the stairs and fit a slimline double socket, but it needs to look neat and tidy . please email me do not phone. it will have to be done on a Saturday afternoon.
I can send you a pic when i have your email.